JL Audio XD600/1v2 オーナーマニュアル

10  |  JL Audio - XD600/1v2 Owner’s Manual  

The XD600/1v2 incorporates a buffered, pass-

through preamp output section, so that additional 
amplifiers can be easily added to the system.

The preamp output delivers the same signal 

that is connected to the XD600/1v2’s inputs.

 

Note: The preamp output signal is not affected by 
the amplifier’s filter controls. If the input signal is 
full-range, the preamp output will be full-range.

Note: When the “Input Voltage” switch is in its 
“Low” position, the level of the “Preouts” signals 
matches the input signal levels (unity gain). When 
the “Input Level” switch is in the “high” position, 
the level of the input signal is attenuated –12 dB 
to produce a line level signal at the “Preouts”. 
This ensures a proper line level signal output 
under both conditions.

 

 

The XD600/1v2 is designed to deliver power 

into subwoofer loads equal to or greater than 2 
ohms of nominal impedance.

The XD600/1v2’s subwoofer outputs are 

designed to accept 16 AWG - 8 AWG wire. To 
connect the subwoofer wires to the amplifier, first 
back out the set screws on the top of the terminal 
block, using the supplied 2.5 mm hex wrench. 
Strip 1/2 inch (12 mm) of insulation from the 
end of each wire and insert the bare wire into the 
terminal block, seating it firmly so that no bare 
wire is exposed. While holding the wire in place, 
tighten the set screw firmly, taking care not to 
strip the head of the screw.

You will notice that there are two “+” positive 

connections and two “–” negative connections. 
This is to facilitate multiple subwoofer wiring.